Public Class match_timer

    '--[MATCH SETTINGS]---------------
    Private _set_minutes As Integer
    Private _set_seconds As Integer

    '--[MATCH SETTINGS]---------------
    Private _run_minutes As Integer
    Private _run_seconds As Integer

    '--[MATCH SETTINGS]---------------
    Private _timeUp As Boolean
    Private _last10Sec As Boolean

    '--[MATCH SETTINGS]---------------
    Private _stop As Boolean
    Private _start As Boolean
    Private _pause As Boolean
    Private _continue As Boolean

    Public Sub New(minutes As Integer, seconds As Integer)

        ' In Case Negative Numbers Where Set
        If minutes < 0 Then
            MsgBox("Sorry You Cant Set Negative Numbers", vbOKOnly + vbCritical, "Wrong Setting")
            Exit Sub
        End If

        ' Timing Setup
        _set_minutes = minutes
        _set_seconds = seconds

        ' Copy To Running Timer
        _run_minutes = _set_minutes
        _run_seconds = _set_seconds

        ' Control Bits
        _stop = False
        _start = False
        _pause = True
        _continue = False

        ' Timer Flags
        _timeUp = False
        _last10Sec = False

    End Sub

    ReadOnly Property ReadMinutes As Integer
        Get
            Return _run_minutes
        End Get
    End Property

    ReadOnly Property ReadSeconds As Integer
        Get
            Return _run_seconds
        End Get
    End Property

    ReadOnly Property ReadTime() As String
        Get
            Return Zero(_run_minutes) + ":" + Zero(_run_seconds)
        End Get
    End Property

    ReadOnly Property TimeUp() As Boolean
        Get
            Return _timeUp
        End Get
    End Property

    ReadOnly Property Last10Sec() As Boolean
        Get
            Return _last10Sec
        End Get
    End Property

    Public Sub Run()

        If _pause = False And _start = True Or _stop = False Then

            If _run_minutes > 0 And _run_seconds = 0 Then

                _run_minutes -= 1
                _run_seconds = 59

            ElseIf _run_minutes >= 0 And (_run_seconds > 0 And _run_seconds <= 59) Then

                _run_seconds -= 1
                DetectLast10Sec(_run_seconds)

            ElseIf _run_minutes = 0 And _run_seconds = 0 Then

                _timeUp = True

            End If

        End If

    End Sub

    Private Sub DetectLast10Sec(seconds As Integer)

        If seconds >= 0 And seconds < 10 Then
            _last10Sec = True
        Else
            _last10Sec = False
        End If

    End Sub

    Public Sub StartTime()

        If _stop = False Then
            _start = True
            _pause = False
        Else
            MsgBox("Cant Start Timer When Its Already Finished Count Down", vbOKOnly + vbInformation, "Timer Message")
        End If

    End Sub

    Public Sub StopTime()
        If _start = True Then
            _pause = True
            _stop = True
        Else
            MsgBox("Cant Stop Timer When Its Not Even Started", vbOKOnly + vbInformation, "Timer Message")
        End If
    End Sub

    Public Sub PauseTime()

        If _start = True And _stop = False Then
            _pause = True
        Else
            MsgBox("Cant Pause Timer When (Not Started) Or Ended", vbOKOnly + vbInformation, "Timer Message")
        End If

    End Sub

    Public Sub ResumeTime()

        If _start = True And _stop = False Then
            _pause = False
        Else
            MsgBox("Cant Resume Timer When (Not Started) Or Ended", vbOKOnly + vbInformation, "Timer Message")
        End If

    End Sub

    Public Sub ResetTime()

        If _start = True And _stop = False Then

            ' Display A Message For The User To Choose
            Dim iAsk As DialogResult = MessageBox.Show("Would You Like To Stop And Reset The Timer ?", "Timer Message", MessageBoxButtons.YesNo, MessageBoxIcon.Question)

            ' Checking The Dialog Result
            If iAsk = DialogResult.Yes Then

                ' Its Safe To Do A Reset
                Reset_Time()

            End If

        ElseIf _start = True And _stop = True Then

            ' Its Safe To Do A Reset
            Reset_Time()

        End If

    End Sub

    Private Sub Reset_Time()

        _start = False
        _pause = True
        _stop = False
        _run_minutes = _set_minutes
        _run_seconds = _set_seconds

    End Sub

    Private Function Zero(Number As Integer) As String

        If Number >= 0 And Number < 10 Then
            Return "0" + Number.ToString
        Else
            Return Number.ToString
        End If

    End Function

End Class